Spinulum

Spinulum is a genus of club mosses in the family Lycopodiaceae. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is placed in the subfamily Lycopodioideae.^[1] Some sources do not recognize the genus, sinking it into Lycopodium.^[2] Spinulum annotinum is widespread in the temperate Northern Hemisphere.^[2]

Spinulum
Spinulum annotinum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Lycophytes
Class:	Lycopodiopsida
Order:	Lycopodiales
Family:	Lycopodiaceae
Subfamily:	Lycopodioideae
Genus:	Spinulum A.Haines[1]
Species
See text.

Species

As of June 2024^[update], the Checklist of Ferns and Lycophytes of the World recognized two species:^[3]

• Spinulum annotinum (L.) A.Haines
• Spinulum lioui Li Bing Zhang & H.He